CN1170554A

CN1170554A - Workstation

Info

Publication number: CN1170554A
Application number: CN 97113144
Authority: CN
Inventors: 克里斯多夫C·赛克斯
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-17
Filing date: 1997-05-16
Publication date: 1998-01-21

Abstract

A workstation has a one piece sheet from L-shape worktop. A central leg hinges to a lower side of worktop adjacent an outer apex of the L and rocks between a stored position extending diagonally across the lower side towards an inner corner of the L and an erected position extending downwardly from the worktop. An end leg hinges to the lower side adjacent each end of the L-shape and rocks between a stored position extending longitudinally across the lower side towards a central portion of the L-shape and an erected position extending downwardly from the worktop. Latch rods secure the legs in erected positions. An upstanding column member of hollow rectangular cross section delivers power and data to the workstation. An outer corner of the worktop is truncated and provides a recess having an oblique edge to accomodate a side of said column member. The column member may comprise two L-section extruded pieces of which an intermediate section hinges between an open position revealing power and data receptacles and a closed position in which an edge of the hinging section snap closes on a stationary L-section piece.

Description

Workbench

The present invention relates to a kind of workbench, for example the workbench of office or similar site use.

Existing desk and workbench all exist structure than disadvantages, in dismounting, install or in new local generally need when installing once more special instrument, handware and the service that was subjected to the personnel of specialized training.Usually, existing workbench is also extremely heavy, singlely generally can't move this workbench.

According to the present invention, a kind of workbench is provided, comprise that has the work top that two settings are roughly L shaped part, a center leg that is hinged on the work top bottom surface, and near a described L shaped outer dead centre so as pass that the bottom surface is stretched to the storage position of its interior angle diagonally and the erection position of stretching out downwards from work top between swing, one is hinged on the bottom surface and the end leg of close various piece end, and pass that the storage position of described L shaped middle body is vertically stretched in the part bottom surface and the erection position of stretching downwards from work top between swing, and be used for described leg is fixed on device on its erection position.

It is compact that this workbench can make size, and available lighter material is made and still can make work top have enough volumes in the mode of space-benefit, thereby singlely just can move easily.And, the articulated manner of workbench leg can reduce it apace and is compressed to the flat form that stores or transport and need adopt any instrument, do not need handware separately yet, be easy to misplace the position at these handwares when another position is moved in a position.

Workbench preferably with export that cross section that electric energy and data the use upright columnar member for hollow rectangle is used in combination and the outer dead centre of work top by butt and a groove can be provided, this groove has the limit that a hypotenuse is used for cooperating columnar member.

In mode for example the present invention is described more fully below in conjunction with accompanying drawing, wherein:

Fig. 1 is the partial exploded view of a workbench, and has the cylindrical rod of output electric energy and data.

Fig. 2 is the upward view of workbench shown in Figure 1, and is illustrated in the workbench that is in the state of unfolding with chain-dotted line.

Fig. 3 is the amplification stereogram of workbench leg.

Fig. 4 is the schematic diagram of workbench, shows a cable basket and plate are installed on workbench.

Fig. 5 is the partial schematic diagram that amplifies, and showing plate is how to be installed on the workbench.

Fig. 6 and 7 is a schematic diagram, and first and second kinds of forms of columnar member are shown respectively.

Fig. 8 is a schematic diagram, shows eight workbench groups that formed by workbench of the present invention.

Fig. 9 is the schematic diagram of a workbench, and the columnar member of another form.

Figure 10 is the amplification partial schematic diagram of a columnar member part shown in Figure 9.

Figure 11 is the upward view of columnar member shown in Figure 9.

Referring to each figure, workbench 11 comprises a work top 12, and this table top has is arranged to roughly L shaped two part 12a and 12b.This desktop can be made by any board-like material with enough strength characteristicies, and adopts conventional equipment or similar devices just can process the moulding easily of its edge more conveniently.The material that is suitable for comprise the known timber of personnel in the art, shredded paper material glued board and by timber or other cellulose grain or fiber and various other flakeboard and fibre board material is bonding makes.Preferable a kind of material is the MDF (medium density fibre board (MDF)) of melamine face.

Center leg 13 is hinged to the bottom surface of work top 12, and near L shaped outer dead centre 14, shown in chain-dotted line among Fig. 2, to stretch to the storage position of interior angle 16 and between the erection position that work top 12 is stretched vertically downward, swinging shown in solid line among Fig. 1 to 3 diagonally along the bottom

surface.End leg

17 and 18 is hinged on the bottom surface of work top 12, and near each end of

various piece

12a and 12b, and the bottom surface along

part

12a and 12b shown in each comfortable Fig. 2 chain-dotted line is vertically stretched to swinging shown in the storage position of L shaped middle body and Fig. 1 to 3 solid line downwards between the erection position that work top is stretched.

Fig. 3 show a leg 17 than detailed structure.As seen, leg 17 comprises a foot 19 in Fig. 3, the width of it and part 12a similar with stability is provided.An axial region 21 is fixed in the foot 19.Preferred mode as shown in Figure 3, axial region 21 comprise an I shape section of stretching out, and have central belly 22 and ora terminalis 23 and 24.Be fixed to the upper end of axle 21 with the foot similar capital part 26 of 19 structures.In legend, two butt hinges 27 are hinged to capital part 26 on the bottom surface of part 12a.

Leg 18 is similar with leg 17 substantially.As among Fig. 1 to 4 as seen,

leg

17 and 18 axial region 21 preferably are partial to the

outer side edges

28 and 29 of work top 12, think that the user provides the bigger space of laying leg.

Center leg 13 can have a 19a of foot, and its width is compared less with pin 19, and the relative pin 19a of axle 22a center is provided with.

Kayser or similar device are used for

leg

13,17 and 18 is fixed on its erection position.In legend, kayser is a bar 31, and its upper end has a lateral part (not shown), and it is hinged with around parallel and rotate with axis that hinge 27 axis in the support member 32 that is fixed on work top 12 bottom surfaces separate.The lower end of bar 31 has one and is positioned at the lower part horizontal with the top rightabout, when leg drops among Fig. 3 visible erection position, its end can be embedded in the circular open 33 in axle 21 the ora terminalis 23, and bar 31 remains on upright state as a strut with leg 17 like this.

Leg

13 and 18 is provided with similarly fixedly strut 32a and 32b.

During use, workbench can be installed simply, is about to

leg

13,17 and 18 and is folded to the position shown in Fig. 1 to 4 solid line from the storage position shown in the chain-dotted line shown in Figure 2 downwards, and handle strut 32,32a and 32b leg is fixed on its position of stretching downwards.Similarly, for workbench is folded to flat form,

strut

31,31a and 31b can dismantle from its opening 33 separately with lighter finger pressure in the lower end, and outstanding downwards being convenient to storage position shown in Figure 2 of each leg transported or stored.

Work top 12 is convenient to make less size, and still provide on the surface thereon rich space be used for placing office equipment, as typewriter, computer CPU, watch-dog, keyboard and analog, can provide rich space to be used for disposing a CPU and watch-dog or analog near the outside on summit 14.Preferably, as shown in the figure, interior angle 16 be arcs of recesses and converge smoothly with inner edge that 12b falls in part 12a.Workbench is suitable for making with lighter material, therefore, when leg is in folding or storage position, singlely just can move workbench easily.

Fig. 2,4 and 5 illustrates in greater detail and is used for vertical rectangular plate 36 is installed on the

outside

28 and 29 of work top.A pair of roughly L shaped support member 37 is hinged on each plate 36.Each support member 37 comprises a roughly L shaped plate portion 37a, has an edge 38 along its top, has edge 39 along its back, and the hinge leaf of a pair of butt hinge 40 is fixed thereon.Another hinge leaf of each hinge 40 is fixed on the plate 36, and support member can pivot around the axle that is parallel to plate 36 minor faces like this.Top edge 38 comprises narrow anterior 38a and a wide rear portion 38b, and a shoulder 41 is respectively arranged on each limit between part 38a and the 38b.Part 38a forms a horizontally extending T shape guide rail with part 37a.

At expanded position, as visible in the Figure 4 and 5, support member 37 outwards hangs slave plate 36 to protracting.

The guide rail 42 that has a pair of C tee section near work top 12 bottom surfaces of each

back

28 and 26, from Fig. 5, can find out in more detail, guide rail 42 separates the support member 37 that is in expanded position to hold, and be fixed on the work top by the fixture as screw, this screw extends through the hole 43 on the channel bottom of C shape guide rail 42.

For installing plate 36, T shape guide rail 37 cooperates with C shape guide rail 42, and the direction of arrow 44 indications is to front slide in the Figure 4 and 5, motion forward is subjected to the restriction of the shoulder 41 that cooperates with guide rail 42 ends, in installation site shown in Figure 2, make plate 36 and outside 28 and 29 separate a bit of distance backward.

Releasable connector such as screw 46 can be screwed in the opening 47 and 48 of C shape guide rail 42 and T shape guide rail 38a, and they make T shape guide rail 38a keep being inserted in the C shape guide rail 42 in the installation site alignment.Screw 46 preferably has a knurled head, just can install or removable screw with finger like this.

By removing fixture 46 and they are outwards sliding with regard to removable plate 36.When plate 36 removes, upwards pivot by direction along arrow shown in Figure 5 49, support member 37 is collapsible on the plate.

It will be appreciated that above-mentioned structure can change, promptly the top edge 38 of support member 37 can be provided with C shape guide rail, and as guide rail 42, work top 12 can be fixed on the T shape guide rail identical with the T shape that is formed by edge 38a and part 37a.

It is contemplated that other structure in addition.For example, can be hinged to the bottom of work top 12 with support member 37 similar L shaped support members.This hinge has occupied the position of C guide rail 42 among Fig. 5.At expanded position, back edge 39 reaches outside 28 rear portions a bit of distance downwards, in other words, edge 39 from side 28 to overhanging.Be fixed on plate 36 inner surface parallel with its minor face with guide rail 42 similar C shape guide rails, such C shape guide rail occupies the position of hinge 40 among Fig. 5.One gap or is at interval arranged at 39 38 places, edge of keeping to the side, by C shape guide rail is cooperated vertically extending T shape guide rail and make plate 36 to lower slider until the base of C shape guide rail cooperate with edge 45 similar ribs shown in Fig. 5 till and installing plate 36.By the removable plate 36 of upwards sliding, and support member is folded on the bottom surface of work top 12 so that store or transport.

If necessary, the bottom surface of work top 12 can have claw and remains on

leg

13,17 and 18 upwards folding or store state.For example, near each shank, rotary pawl 50 can be installed on the bottom surface of work top 12 and rotate between the position shown in the solid line among the position shown in the chain-dotted line and Fig. 3 in Fig. 3 around vertical axis, claw 50 is in the beneath extension of leg 17 parts, and holds it in upwards folding or storage position.Similarly claw can be arranged on the plate 36, and cooperates with the support member 37 that is in storage position.

Fig. 1 and 4 shows cable basket 51, and they are suspended between the adjacent a pair of support member 37 that is in expanded position.

As seen, cable basket structure 52 has line end framework 53 among Fig. 4, and its upper end is crooked to form vertically to overhanging ear 54.After the installation of plate 36 shown in arrow among Fig. 4 44, cable basket 51 can drop to the position shown in the arrow 57 among Fig. 4 simply, is parked on the support member 37 of expansion to overhanging ear 54 like this.Cable basket 51 can be used to make the cable maintenance to be connected with similar articles with watch-dog, CPU equipment, printer, and these cables are remained near on the position of workbench, and they are placed on plate 36 back and not in sight line on this position.

Best, workbench 11 can be used to and a upright hollow cylindrical part makes up, and the cross section of this columnar member is rectangle, is preferably foursquare, as Fig. 1, in 2,6,7 and 8 as seen.

Under a kind of form, this columnar member can be as Fig. 1, the columnar member 61 of the maximum height shown in 6 and 8, can reach ceiling, and for example can make by the square metallic plate, and preferably row has power line and data wire to pass through standard socket 63 to workbench transmission of electric energy and data in advance, and this socket is to snap in the rectangular aperture 64 corresponding on the columnar member 61.These are all located, and are arranged near on the bottom surface of workbench 11 time when columnar member 61 like this, and as shown in Figure 1 they are all a little more than work top 12.

In a preferred versions, columnar member 61 is used for being connected use with the tubulose chimney spare 66 of a joint square-section, and it can be enclosed within the upper end of columnar member 61, as shown in Figure 6.Chimney spare 66 has the flange 67 that extends upwardly in the top, and chimney spare can be installed in by flange 67 like this.On ceiling tile or the similar planar ceiling.Power supply and data cable then can be from passed through downwards suitable for reading 68 the chimney spare 66 of roof space, to be connected with the Connection Block that inserts columnar member 61 in advance.This also may make cable be up to columnar member 61 inside from the floor, and the columnar member 61 of whole like this height can be used to transmit power supply and the data that floor and/or ceiling transport.

Except opening 64, columnar member 61 can have upper shed 69, generally is covered with by lid 71, can be near columnar member inside so that electric wire is installed by it.Lid 71 can be a ventilating board 72, and its card fits in the opening 69.Gap between chimney spare 66 and columnar member 61 tops if necessary can be by a simple sealing plate sealing, columnar member 61 is used for supplying with HVAC (heat, ventilation and adjusting air), by being connected to the traditional HVAC outlet on the opening 68 in the ceiling space, this HVAC air can supply to downwards in the columnar member 61, and outwards flows into the work place through ventilating board 72.

To recognize that columnar member 61 just can be installed and be removed with the workbench 11 the same instruments that do not need, and just can move easily with both hands.

Fig. 7 shows a kind of columnar member 61a of that changed or the high form of table, except its height all identical with columnar member 61 different remainders, its extended desktop 12 a bit of distance that are higher than.The upper end of columnar member 61 is covered with by a mortar board 74.Can at any time columnar member 61a be loaded onto during use, and be connected on the node of power supply and data network on the floor, socket 63 all be with columnar member 61 the same being connected on floors input power supply and the data network of above-mentioned whole height.

Preferably, as clearly visible among Fig. 1 and 2, the summit 14 of work top 12 is that the

end limit

28 and 29 to provide a groove with a hypotenuse 78 to be used for to cooperate relative work top 12 of butt tilts or the limit of the columnar member 61 at diagonal angle.

Is good especially as the structure seen in Fig. 1 and 2 as a model, multiple table design can its as the basis, as seen a such example, has wherein adopted eight workbench 11 and two columnar members 61 in Fig. 8.Skilled person in the art can recognize, adopt the basic model shown in Fig. 1 and 2 also can construct multiple other table design.

Fig. 9 shows as above referring to figs. 1 through 5 workbench 11 described in detail, and and the columnar member 110 of another kind of form use together, this bar 110 comprises two L shaped relatively

section extrusion

111 and 112, and preferable extruded aluminium staggered relatively is to form square hollow cross section parts.In a preferred versions,

part

111 and 112 is articulated so that these parts can be in Figure 11 rotated between the open position shown in the closed position shown in the solid line and the chain-dotted line, also just like the interlude 112a shown in the arrow among Figure 10 100, wherein columnar member 110 inside are to be exposed.

For pivot joint is provided, an extrusion 111 has the squeezing passage shape socket 113 of C tee section, and this socket is formed on the inboard of a marginal portion 114.Another extrusion 112 is made of a monolithic extruded part circular pearl hinge fraction 116, and it is contained in the socket passage 113 pivotally.This hinge fraction 116 is near the marginal portion 117 of part 112, and connect thereon through a monolithic extruded edge of laterally inwardly stretching 118, concentric at this extruding margin 118 of assembled state with hinge fraction 116 and jack part 113 arcs, and one laterally stops at radially inner ledge 121 places to overhanging monolithic extruded ledge 119, and this ledge 121 is connected on the hinge fraction 116.This structure makes part 112 rotate nearly 90 ° opening and closing between the position, and this slewing area is subjected to being engaged in the restriction of the outside 113a and the ledge 121 on the 113b of C tee section socket 113.

On the inner edge of turnbuckle 126,127 and 128, be formed with a summit 122 of part 111 and a summit 124 of relative edge 123 and other part 112 respectively.This turnbuckle comprises (preferably seeing Figure 11) C tee section part, has the shoulder block that inwardly stretches out on C shape part inner edge, is used for cooperating the screw thread of screw when a screw shaft is in the opening of squeezing into turnbuckle.The inner edge of the hinge fraction 116 of part circular can be formed with the shoulder block that stretch out inside similarly, and it also can play the effect of a turnbuckle like this.As shown in Figure 11, keep to the side in the closed position marginal portion 129 of 123 part 112 has a monolithic extruded claw part 131 of laterally inwardly stretching, this claw part 131 has a horizontal outside step part 132, it catches the end face of a part 133 of turnbuckle 127 in the closed position, as shown in Figure 11.This claw part 131 terminates on the laterally interior oblique hammerlock 133.

As Fig. 9 and 10 as seen, columnar member 110 by the roughly L shaped crimping section 111 of continuous length and three independently crimping section 112 assemble, i.e. stage casing 112a between hypomere 112b, epimere 112c and the section of being arranged on 112b and the 112c, when the lower end of columnar member is on the floor, the height of the work top 12 of the approximate workbench 11 in this stage casing.These

sections

112a, 112b and 112c can be assembled into continuous segment 111 by their part 111 Ys along the insertion position shown in the cross sectional view that is in Figure 11 are slided.Preferably,

section

112a, 112b and 112c are that card is made into continuous segment 111, this forms by these sections are exerted pressure to marginal portion 114, pearl hinge 116 cards are fitted in the C tee section passage socket 113 like this, are on certain open position between the position shown in Figure 11 solid line and the chain-dotted line.Under the long situation of

section

112c and 112b, this card is joined and can be carried out one by one, promptly elder generation is fitted on the pearl hinge fraction 116 top cards in part circular cross section the top of C tee section passage and forms a socket 113, is exerted pressure in the bottom of following then, is contained in the passage until whole pearl.Then can be with

section

112a, 112b and 112c to the swing of the closed position shown in Figure 11 solid line, and hand be applied to keep to the side on the outer surface of part 112 129 sentence with hammerlock 131 fully elasticity to invagination to walk around claw limit 132.Then, stress on the long section as

section

112b and 112a again, this measure of closing can be exerted pressure and formation gradually from an end one by one by the length along this part.

Can notice that neighboring edge 114, part 112 stop and inside flange 118 is inwardly located beginning from a distance leaving edge 114, flange 118 just gets around C tee section socket 113 well like this.The edge 114 of part 111 be stretch out forward a bit of distance so that an extension 114a to be provided, but its closing gap only stays a bit of gap between the front of flange 114a and flange 118.Keep to the side 123 equally, flange portion 131 stretches out from the part 112 that inwardly separates with edge 123, and only staying between flange 131 and flange 123a end at closing gap so has a bit of flange 123a on one closely spaced 111.Preferably,

part

111 and 112 outside fluting, the square-section groove that has longitudinal extension as shown in Figure 11, and the flange 113a on one side and 118 and another side on

flange

131 and 123a between described gap identical and match with the spacing of tanks width, the vertical extension gap that the gap produced so thus all is hidden, is at least not in sight line.

Under preferred versions, as shown in Figure 11, the part 111 in L shaped cross section have monolithic extruded one-tenth in stretch and keep flange 134, these flanges 134 in L shaped the relevant parts transversely tiltedly, and one and another coplane or basically coplane ground extend, and between its end leaving gap or interval.For simplicity before

part

112a, 112b and 112c being formed continuous section 111, be provided with a power supply and data socket and outlet box 136 in the columnar member, this box 136 can its back plane be attached on the flange 134 and passes flange 134 (along the axis direction shown in Figure 11 chain-dotted line) and be fixed thereon with fixture.The conduit 138 that one insulating materials, for example plastics are made can be descending in the inner edge space at flange 134 angle 122 backward, and finish on socket 136 in common mode, and make feed cable and data cable descending along columnar member from the ceiling coupling part.

Fig. 9 shows the columnar member 110 that is connected in its lower end on the stable square floor 138, and this base plate is positioned at and maybe can be installed on the ground, and this plate 138 slightly size than the cross section of columnar member 110 is big.This plate can have the hole that overlaps with turnbuckle 126,127,128, and promptly turnbuckle is inner overlaps with hinge fraction 116 inside, also can be connected on the hypomere, promptly is upward through plate with screw and is screwed in the above-mentioned turnbuckle.This connection is also played hypomere 112b is remained on effect on continuously extruded relatively 111 the closed position.

The similar plate of a best opening can be connected to the upper end of columnar member 110 and play epimere 112c is resisted against on the opening of L shaped relatively cross section part 111.

During use, for near socket 136, the user of workbench 11 can walk around part 133 near the one side of claw piece 131 so that claw 131 fully inwardly is folded to step part 132 to section 112 by hand, thereby the section of opening 112a, section 112a can be by swing open to the position shown in Figure 11 chain-dotted line then.Break away from socket 136 and the section of closing 112a if desired, when closing movement, lock section 133 is across the outside of part 133, and make the claw part to invagination, when further closing movement, step part 132 is stuck on the part 133 so that part 112a is maintained in its closed position, shown in Figure 11 solid line.

Claims

1. workbench, comprise that has the work top that two settings are roughly L shaped part, a center leg that is hinged on the work top bottom surface, and near a described L shaped outer dead centre so as pass that the bottom surface is stretched to the storage position of its interior angle diagonally and the erection position of stretching out downwards from work top between swing, one is hinged on the bottom surface and the end leg of close various piece end, and pass that the storage position of described L shaped middle body is vertically stretched in the part bottom surface and the erection position of stretching downwards from work top between swing, and be used for described leg is fixed on device on its erection position.

2. workbench as claimed in claim 1, it is characterized in that, also be assembled with an accessory plate, be used for installing on the outer side edges of at least one part of work top, and comprise the hinge support that is flapped toward an expanded position from the flat folding position, and roughly the guide rail of C and T section is preferably disposed on accessory plate and the work top, C and T shape guide rail can be arranged on the hinge support, and are in expanded position and plate can be hinged with on the work top by described T shape guide rail being inserted C shape guide rail and hinge support.

3. workbench as claimed in claim 2 is characterized in that, comprises that one is used for T shape guide rail is inserted in releasable connection part in the C shape guide rail.

4. as claim 2 or 3 described workbench, it is characterized in that, comprise that one is used for being suspended in the cable basket with between the adjacent pair of engage members of its expanded position, this each end of basket tool has a vertical outside ear and is used for fixing on a top of adjoining support member.

One kind with the work in combination platform of the described workbench of arbitrary claim as described above, it is characterized in that, also combination has the upright columnar member of hollow square-section, be used for to workbench supply power and data, the outer dead centre of work top is butt, and has the side that a hypotenuse opening is used for cooperating columnar member.

6. work in combination platform as claimed in claim 5 is characterized in that described columnar member has the square-section.

7. as claim 5 or 6 described work in combination platforms, it is characterized in that, this columnar member has an open top, wherein be set with one its upper end that is fixed on the ceiling upside have transverse edge on pipe, thereby power supply and data that ceiling or floor are supplied with can be sent to workbench.

8. as claim 5 or 6 described work in combination platforms, it is characterized in that a bit of distance on the work top is stretched out in the upper end of columnar member, thereby the power supply of ground supply and data can be sent to workbench.

9. as claim 5 or 6 described work in combination platforms, it is characterized in that bar comprises two roughly extrusions in L shaped cross section, they have the marginal portion that cooperatively interacts.

10. work in combination platform as claimed in claim 9 is characterized in that, first pair of described marginal portion pivotally connects so that these extrusions pivot around the columnar member longitudinal axis between the opening and closing position.

11. work in combination platform as claimed in claim 10 is characterized in that, a described extrusion comprises an interlude, its independent adjacent each section and rotating.

12. as claim 10 or 11 described work in combination platforms, it is characterized in that, pivot and connect the extruding socket of the C tee section on the inner side edge that is included in described first a pair marginal portion, described another right marginal portion comprises a monolithic extruded flange of laterally inwardly stretching, have one on it laterally to overhanging monolithic extruded ledge, provide a part circular monolithic extruded hinge fraction with the outer end adjacent that is contained in pivotly at it in socket part.

13. work in combination platform as claimed in claim 12 is characterized in that, described hinge fraction comprises a C tee section turnbuckle.

14. each the described work in combination platform as in the claim 9 to 13 is characterized in that, second pair of described marginal portion comprises generally joins part with described card that is maintained in its closed position.

15. work in combination platform as claimed in claim 14, it is characterized in that, described card is joined part and is comprised a claw part of laterally inwardly stretching, described claw partly is described second pair monolithic extruded forming in marginal portion, but also has the lock section of laterally inwardly stretching of transverse elasticity folding integrally to push at another described second pair edge to form and generally cooperate described claw part.

16. as each the described work in combination platform in the claim 9 to 15, it is characterized in that, L shaped cross section part is included on the inner edge of various piece in L shaped cross section in contiguous one bight a monolithic extruded maintenance flange, this maintenance flange laterally inwardly tilts, and described maintenance flange is coplane extension mutually basically.

17., it is characterized in that each L shaped cross section part has a monolithic extruded turnbuckle at least as each described work in combination platform in the claim 9 to 16 on inner side edge.

18. columnar member that is used for transmitting the hollow rectangle cross section of power supply and data to workbench, comprise two L shaped relatively extrusions, has the marginal portion of working in coordination, the first pair of described marginal portion cooperate in the pivot joint mode so that described opening and closing the longitudinal axis around columnar member pivots between the position, a described extrusion comprises a stage casing, and it can be independent of adjacent each section and pivot.

19. columnar member as claimed in claim 18, it is characterized in that, the extruding socket that on the inner side edge of an edge part of first pair, has a C tee section, and described another right marginal portion comprises a monolithic extruded flange of stretching in laterally, this flange has a horizontal overhanging monolithic extruded ledge, and in contiguous its part that is contained in the outer end in the jack part pivotally circular monolithic extruded hinge is arranged.

20. columnar member as claimed in claim 19 is characterized in that, described hinge fraction card fits in the described socket.

21., it is characterized in that described second pair of edge comprises that the general card that described each part is maintained in its closed position joins part as claim 18,19 or 20 described columnar members.

22. columnar member as claimed in claim 21, it is characterized in that, card is joined part and is comprised a claw part of stretching in laterally, this claw part is described second pair monolithic extruded forming in marginal portion, but also have transverse elasticity folding laterally in stretch the lock section, it is monolithic extruded forming on another described second pair marginal portion, and generally cooperate the lock section.

23. as each described columnar member in the claim 18 to 22, it is characterized in that, a L shaped cross section part is included near on the L shaped cross section part various piece inner side edge in its bight holistic maintenance flange, this maintenance flange laterally inwardly tilts, and described maintenance flange is copline extension mutually basically.

24., it is characterized in that each L shaped cross section part has a monolithic extruded turnbuckle at least as each described columnar member of claim 18 to 23 on inner edge.